News and announcements:
Archisman:
VSC meeting taking place next week with some standard items to be discussed
Virgo biweekly meeting tomorrow: O4 commissioning
Appointment of the deputy spokesperson: we don’t know who it will be
Discussion of the Belgium representation in the EGO council to be held on Friday
Giacomo: I have been having discussions to have a Belgium representative at the EGO council in the past. They handle funding, decisions on upgrades of Virgo, … At the moment there’re only Italian, French and Dutch representatives. On Friday we shall have an informal discussion with the director of the council and will hear their proposal.
Joris: in the LVK, regarding instrumentation:
The most interesting thing is that there’s a heavy SAS (suspension) aimed at holding heavier test masses.
Lots of activity is going on with LIGO-India (first building in already built)
KAGRA: 1Mpc first month and after a year they will try for 10 Mpc.
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CW:
Giacomo on behalf of Antoine: continuing project with Rome → things are advancing in terms of understanding the software.
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GWB:
Max:
pygwb paper → p&p procedure is finished in LIGO and Virgo. We have addressed and implemented all the comments. We’re now ready for submission
stamp-PEM implementation at Virgo is being problematic, cause they don’t use HTCondor, which is what stamp-PEM was initially coded for. Also, there’re other parameters that differ.
Guillaume: 1 month duration of seismic data we're now analysing.
Aäron: still working on domain walls.
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Instrumentation/mechanics:
Joris: the 3rd test for cryogenic inertial sensors was not successful → why? I started asking people in Australia. Now we have new ideas:
We will not use superconducting capabilities of Niobium and using now Titanium
Morgane made some slides with all the tests done: now we’re testing simple components, like photodiodes in the collimators (results are similar to those in KAGRA), collimator tests (three ways of doing it), … → we will update on the outcome of these tests in two weeks from now
Pengbo Li: working with the wire spool for the MWS wires
Coils winding examples:
Winding pattern tests (5 layers):
Joris: is the structure of the wiring on the right something you came up with or a standard structure?
Pengbo: it’s our idea
Joris: is your baking in air or vacuum?
Pengbo: vacuum
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Computing:
Andres:
we had the ET computing kick off workshop. We are now figuring out who can work and contribute. Hopefully activities will start
In Virgo: migrating the Louvain cluster from CentOS 7 operating system to another one. We’re still testing it.
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